SEL-651R

Design Template Guides
Quickly commission the SEL-651R by applying just the settings you need using SEL QuickSet Design Templates. Easy-to-use Design Templates create a simplified settings interface and can be customized for your needs. Store templates on the recloser control for quick access when making settings changes.

See our library of templates and guides that have already been designed for your application or design your own templates with the licensed version of acSELerator QuickSet. Let us know if there is another application you need!

Multirecloser Interface
Stock one recloser control, and support several popular recloser models. Connect any of the following reclosers to the SEL-651R Multirecloser Interface:

G&W—Viper- LT and Viper- ST
TAVRIDA—OSM_150 
Thomas & Betts—Elastimold MVR

The Multirecloser Interface provides maximum data for the recloser, including the status of 52a, 52b, and 69 contacts as well as up to six low-energy analog (LEA) voltage inputs, through a single control cable.

Compatible Reclosers
The SEL-651R is available with a variety of control cable interfaces. These interfaces provide complete plug-and-play compatibility for a wide range of reclosers. View the table of compatible reclosers.

Recloser Options
The ordering options for the SEL-651R provide the flexibility to support common options found in popular reclosers, including the integral LEA voltage sensors, recloser power cables, and control cables. Configure your SEL-651R for direct plug-and-play replacement of popular recloser controls from other manufacturers while adding the advanced recloser control functionality found only in the SEL-651R.

Reclosing Control
Apply four-shot reclosing with sequence coordination, synchronism check, and voltage check. When load levels vary from phase to phase, set trip levels independently for each phase.

Relay- and Recloser-Compatible Time-Overcurrent Protection
Apply 10 U.S. (IEEE) and IEC curves and 38 traditional curves, each customizable with time adder, vertical multiplier, and minimum response time functions to coordinate your feeder protection.

Single-Phase Trip and Reclose
Control, trip, and reclose on a single phase in the event of a single-phase fault. Single-phase tripping maintains service to the customers on unaffected phases.

Phase and Ground Directional Elements
Securely trip forward or reverse faults for overcurrent protection. SEL’s Best Choice Ground Element logic selects the best ground directional element for system conditions.

Second-Harmonic Blocking
Detect transformer energization with the second-harmonic blocking elements. Use the output of the harmonic detection elements to block selected tripping elements until the inrush conditions subside.

Six Voltage Inputs
Make better switching decisions and execute more complex Automatic Network Reconfiguration by knowing the voltage on both sides of the recloser for each phase.

Optional LEA Inputs
Reduce costs and save space with three or six LEA inputs. Several versions of LEAs are supported, including those that are integral to popular reclosers as well as externally installed.

Configurable Power Elements
Determine the real or reactive power flow direction and magnitude. Apply the elements at system intertie points, capacitor bank installations, and similar locations.

Frequency and Voltage Protection
Provide advanced load shedding or network decoupling with six levels of frequency elements and four rate-of-change-of-frequency elements along with under-/overvoltage protection.

Full-Function Clock Elements
Vary logic according to the time of year/week/day to accommodate variations in the load type for seasonal or other predictable load changes.

Eight Settings Groups
Use the eight settings groups to easily configure multiple applications in one settings file and to fit operational situations.

Built-In IEEE C37.118 Synchrophasors
Apply synchrophasors to improve island detection of distributed generation or for additional insight into what is happening on your distribution feeders.

IEC 61850 Communications Protocol
Apply optional IEC 61850 communications for guaranteed performance of substation automation and control. Streamline configurations of IEC 61850 enabled relays with acSELerator Architect SEL-5032 Software.

Mirrored Bits Communications Technology
Provide fast and reliable relay-to-relay communication for advanced communications-assisted protection, network reconfiguration, pilot protection, and restoration schemes.

Modbus, DNP3, and ASCII Protocols
Integrate into new or existing networks. SCADA links, local human-machine interface (HMI), and dial-in modems can access important relay data with these popular protocols.

Simple Network Time Protocol (SNTP)
Simplify wiring and installation by receiving a time signal over existing Ethernet networks. SNTP makes a good backup to more accurate IRIG-B time synchronization. The 5 ms accuracy is adequate for basic time synchronization.

Built-In Web Server
Access basic relay information on a standard Ethernet network with the built-in web server. View relay status, Sequential Events Recorder (SER) data, metering information, and settings for easy access within a local network. Web server access requires a relay password and is limited to read-only viewing of information or to secure remote firmware upgrades requiring an additional login level.

Fault Location
Take advantage of accurate distance-to-fault measurements using the impedance-based fault locator.

Per-Phase and Max-Phase Recloser Wear Monitor
Monitor breaker or recloser contact wear for each phase to assist in efficient maintenance planning and troubleshooting.

Metering and Power Quality (PQ) Monitoring
The control reports fundamental, power factor, rms, energy, max./min., and instantaneous/peak demand metering data. Simplify power quality analysis using harmonic metering to the 16th harmonic as well as PQ analysis and PQ monitoring records for voltage sags, swells, and interruptions (VSSI) and load profile reports.

Event Reports
View the latest 1,000 event records with the user-defined SER to aid in testing and troubleshooting relay settings, simplify post-fault analysis, and help improve your understanding of protection schemes. Capture event oscillography data in both Compressed ASCII and COMTRADE file formats. Event reports can record up to 60 cycles with a user-defined prefault duration and triggering.
Use acSELerator Team SEL-5045 Software to automatically gather relay event reports on your PC and manage them with a database.
Use synchroWAVe Event 2015 Software to display oscillograms and vector diagrams to analyze event reports.

Communications Ports
Three EIA-232 serial ports, one EIA-485 port, two 10/100BASE-T Ethernet ports, USB, and one BNC IRIG-B port are provided.

Display and Operator Controls
Large front-panel display and programmable operator control interface pushbuttons allow easy interaction. In addition to the navigation pushbuttons, 12 programmable pushbuttons are included. The pushbuttons are preprogrammed and labeled with popular recloser control switch functions, including a “Lock” function to prevent inadvertent operation. Pushbuttons can be reprogrammed and relabeled to meet your unique application requirements.

Contact Outputs
In addition to the recloser interface, two Form C contact outputs are included in the standard configuration. Use these contacts for alarms or control points.

Secondary Voltage Inputs
Six traditional 300 Vac potential transformer inputs are included to monitor both sides of the recloser and to verify synchronization.

Current Inputs
Each phase is monitored by a 1 A current transformer input. The neutral current is monitored by a 0.2 A sensitive earth fault (SEF) current transformer input.

Enclosure
The SEL-651R is available with two standard enclosure options: a 24.5" (W) x 30" (H) x 16.6" (D) dual-door, side-mounted, painted steel enclosure and a 17" (W) x 32.5" (H) x 14" (D) single-door, rear-mounted, painted steel enclosure. These enclosures provide space to install radios, modems, switches, security gateways, and other equipment that allow you to integrate the control into your distribution automation system.
All enclosure options achieve an IP45 rating from the IEC 60529 "Degrees of protection provided by enclosures (IP Code)" standard.  The painted steel versions are also tested to meet the Type 3R category from the NEMA 250 “Enclosures for Electrical Equipment (1000 Volts Maximum)” standard, while our optional stainless steel enclosures achieve a Type 3RX rating.

Advanced 12 Vdc Battery Charging and Monitoring System
The 12 Vdc battery charger is continually monitored, and the battery health is tested daily to ensure backup power availability. A 16 Ah battery is provided in ac-powered versions of the SEL-651R to power the control and accessories, including security devices, radios, modems, and other communications equipment in the event that ac power is lost.

GFCI Outlet
A convenient GFCI-protected outlet is included in the standard 120 Vac-powered versions of the SEL-651R to power laptops or other devices.